Music reproduction system



March 19, 1946; SNODGRASS 2,396,756

MUS IC REPRODUCTION SYSTEM Filed Feb. 20, 1945 2 Sheets-Sheet 1 INVENTOR. z/huzs HAPPY Swooamrss,

March 1946! J. H. SNODGRASS MUSIC REPRODUCTION SYSTEM 2 Sheets-Sheet 2 Filed Feb. 20, 1945 INVEN TOR, vim/5 Hnzeriwwmg ArroeA/EY.

Patented u. 19, 1946 UNITED STATES PATENT. OFFICE MUSIC REPRODUCTION SYSTEM James Harry Snodgraa, Fresno, CaliL, assignor to Herman A. Brockamp, Los Angelcs, Calif.

Application February 20, 1945,- Serial No. 578,891

10 Claims.

station for the entertainment of patrons.

Briefly stated, there are upon the market at the present time four somewhat distinctive types of music reproduction systems, one of which is known as wired music, which is characterized by the location in a, central station of phonograph turn-tables supervised by an operator to whom signals are transmitted from the outlying sub-stations and further characterized by an inter-talk system whereby the depositor of a coin at the outlying sub-station may converse with the operator at the central station to select the particular record or selection desired to be played by the patron. These systems are illustrated and described in the West et a1. Patent No. 2,242,197, issued May 13, 1941, the Stark et al. Patent No. 2,291,115, issued July 28, 1942, and many others.

The second of thesesystems is known as the jute box wherein a, phonograph containing a plurality of irecords is provided with selector mechanism by which a patron depositing a coin in the phonograph may select and have reproduced for him any one of the records in the phonograph. Some of these systems are arranged to have the deposit of the coin and the selection of the particular record made at a point remote from the phonograph itself. One such system is illustrated particularly in the patent to Wilcox No. 2,002,236, issued May 21, 1935.

principleof having a honograph with a plurality of records contained therein which, upon the deposit of a series of coins, plays the records in a predetermined sequence, either the coins being deposited directly in the cabinet or in remote coin collection boxes. Again this type of system is illustrated in the Wilcox patent above referred to.

A still further type of system is known as measured music, in which a phonograph is located at-a suitable location connected to coin collection boxes, each of which is connected to a loud speaker and arranged in-such manner that deposit of a coin in any one of the coin collection boxes will couple the loud speaker of that particular box to the phonograph so that music will be reproduced in the loud speaker for a predetermined length of time dependent upon the 45 wherein the phonograph in the coin box. One such system is illustrated in the patent to Farrell No. 2,352,188, issued June 27, 1944.

While originally the second, third and fourth types of systems ordinarily used a phonograph located at the particular cafe or other local place of amusement, more recently it has been the practice with system four to have the phonograph mechanism itself located at a central station somewhat corresponding .to the central station of the first system described above, the local coin collection boxes and loud speakers in the subscribers outlying station being connected to the central station by means of telephone wires over which the signaling currents and the music reproduction currents are transmitted.

It frequently occurs that in a particular town or section of town or village the number of possible subscribers to any one oi these systems is go so small as not to warrant the installation of central station equipment and the hiring of the necessary operators to operate the central station equipment, particularly where it is desired that the entertainment music be available over g5 relatively long periods during a day. However,

substantially any town or village will have a suflicient number of cafes, lunch rooms, soda fountains or other places of business at which patrons may desire to be entertained by music transmitted over telephone wires, to support a central station equipment and operators during portions of a day permitting the use of the wired music system described above during those portions of the day. However, during other portions of the day the patronage may not be suf- Still another of the systems operates upon the '40 outlying subscriber's stations may be a sufiiciently profitable business if no central station operator is required to be on duty, as in the remotely located jute box system described above or in the measured music" system described above, which reproduces the music is located remotely from the outlying subscribers stations.

It is therefore an object of my invention to provide a system whereby the central station,

which includes wired music turn-tables, coin registering mechanisms and inter-talk systems, may be successfully employed and in which central station a remotely located juke box system may also be successfully located to be supervised number and denomination of the coins deposited "by an operator at the central station.

Another object of my invention is to provide a system of the character described in the preceding paragraph, wherein the remotely located juke box system at the central station may also be utilized to supply measured music" to subscribing stations which could not otherwise supply sufliclent business to support a recordselecting juke box" system or a, "wired music system.

A further object of my invention is to provide a system by which any two or more of the systems may be so interconnected as to permit the utilizetion of the phonograph equipment located at a central station, from which central station local subscribers may subscribe to either the "wired music," the juke box" record selector system or the measured music system, thus minimizing the expense to a music vending operator of the initial equipment and minimizing the amount of labor which is required for the purpose of maintaining all of the systems in operation.

Other objects and advantages of my invention will be apparent from a study of the following specification, read in connection with the accompanying drawings, wherein:

Fig. 1 is a diagrammatic view of a combination central station and two remotely located subscribers stations, the separation of the central station from the outlying subscribersstations being indicated by the broken line extending horizontally across Fig. 1; and

Fig. 2 is a schematic wiring diagram which 11- lustrates the manner in which the various systems may be interconnected and may be operated without interference with each other.

Referring to the drawings, I have illustrated in Fig. 1 a central station indicated generally by the reference character I, at which central station is located a phonograph record player 2 or the type illustrated and described in the above mentioned Wilcox patent and, in addition thereto, a plurality of turn-table devices 3, together with a switchboard 4 of the type employed in the wired music system, such as is illustrated in the above mentioned West, et a1. and Stark, et al. patents.

In the lower part of Fig. 1, I have illustrated a "wired music reproducer 5 of the type illustrated in the above entitled West, et al. or Stark, et al. patents, and also a counter 6 upon which may be located coin collection and record selecting mechanisms 1 at various points along the counter. The mechanism I may be located either in the same establishment as the wired music reproducer 5 or in a separate establishment.

In Fig. 1, I have also illustrated a typical lunch counter 8 upon which is mounted a plurality of measured music coin collection and loud speaker mechanisms 9 which may be employed for the purpose of playing a predetermined length of music selection upon the deposit of a coin therein in the manner described in the above mentioned Farrell patent.

The central station equipment which is employed for the playing of wired music comprises a plurality of phonograph tum-tables l0 and H, each of which is driven by a motor (not shown in Fig. '1) and upon which records may be placed one at a time by an operator at the central station in response to an inter-talk communication system employing a speaker ii on the switchboard 4 and a microphone l3 by which the central station operator can respond to the voice communication coming from the outlying subscribers station of the wired music system.

The number 01 turn-tables Ill and II will be,

usually of course, equalto the number of "wired music subscribers stations and the switchboard 4 will be provided with coin registering systems such as indicated at I4 by which the number and denomination of the coins which may be deposited in the wired music reproducer mechanism 5 at an outlying subscribers station may be determined, there being one of these sets of coin registering mechanisms for each of the wired music subscribers stations. Also .the switchboard 4 should be provided with a talk-listen switch ii for each of the subscribers stations by which the operator may control the inter-talk mechanisms by which the depositor of a coin in the wired music reproducer 6 may select the particular record desired to be played upon the turn-tables in or H associated with that subscriber's station and receive acknowledgement of his selection from the central station operator.

Thus far described, the wired music" systems correspond in all respects to any one of a number of those in common use as illustrated in the West, et a1, or Stark, et a1. patents above referred to. Those systems operate generally as follows:

A patron at one of the subscribing stations having a wired music reproducer 5 deposits one or more coins in coin chutes it at that station, whereupon the number and/or denomination of the coin deposited will be registered upon a coin counter or by suitable lights in the coin registering mechanism l4 of the switchboard 4, the operator at the central station speaking through the microphone l3 requesting the patron to name the particular record desired to be played for reproduction at that outlying station. Suitable mechanism is employed by the operator for checking ofi or subtracting the value of the deposited coin or coins until all or the coin values previousl deposited at that station have been used up. The operator at the central station selects the particular record from a stack of records or library located at the central station, places the first one selected upon theturn-table associated with the reproducer located at the particular outlying subscriber station, starts the motor thereof and places the pick-up arm ll on that particular record, the music thus reproduced being passed over telephone wires TW to the particular subscriber sta-.

tion where it is reproduced by a loud speaker located in the reproducer 5 at that station.

It more than one record is selected by the depositor of the coin, the additional records are extracted from the library and placed upon a shell l8 immediately below or adjacent to the particular tum-table associated with that station so that at the termination of the first record it may be removed from the turn-table and the next record selected may be placed upon the turn-table and the record reproduced at the subscribers station.

The remotely located juke box system operates upon the principle that a patron at the counter 6 may deposit a coin in the coin collection box 1 and may operate a selector dial in corresponding to the ordinary selector dial employed for telephones, the dial being provided with a suitable number of finger openings so that by rotating the dial through a given portion of acomplete revolution a particular numbered selection may be picked out. For example, as illustrated in the above noted Wilcox patent, the phonograph 2 may be provided upon its front with a plurality of selector buttons iii, any one of which when pushed in will select a particular record located within the machine and set into operation the tm-n-table'mechanism, the selector necessary to play. that particular record. after which a second one of the push buttons I 9 which may have been pressed in is effective to cause the selection of that particular record and the playing thereof. While for purposes of convenience a dial selector i8 is shown on the coin collection box '1, other systems in general use employ a series of push buttons. each of which when actuated by a person depositing the coin in the box I will transmit a different number of impulses over the telephone line TW to make the desired selection of records to be played upon the phonograph 2 and it is to be understood that the principles of my invention applyto such systems equally as well as to a system employing a dial selector.

As is explained in the Wilcox patent noted above, the juke box phonograph 2 may be provided with suitable magnets associated with the push buttons l9 to permit the remote operation of the selector buttons I 9 from a remote location, thus readily adapting this particular phonograph reproducing mechanism to the location of the phonograph in a central station for connection to a plurality of coin collection boxes I located at remote subscriber's locations.

It is also to be noted that the above noted Wilcox patent illustrates and describes a system in which whenever no selection of any particular record has been made by actuation of the buttons l9 or their associated magnets, the phonograph will continue to play the entire repertoire of the records in the phonograph 2 in a given sequence.

The measured music system, as illustrated and described in the above noted Farrell patent, operates along the following lines: A subscriber at the counter 8 deposits a coin in the coin collection box 9, the effect of which is to start into operation the phonograph 2 and cause the phonograph to play a record while at the same time the loud speaker 20 of the particular box in which the coin hasbeen deposited is connected to the electric wires interconnected with the phonograph so as to cause the reproduction of the music at the particular coin collection box 9 in which the coin has been deposited.

Keeping in mind the foregoing principles of the three distinct systems, it will be apparent that by employing suitable adaptor mechanisms, electrical wiring systems, relays and switches, the same central station may be employed for producing either the wired music" amusement, the juke box record selected amusement, or the measured music amusement.

In Fig. 2, I have illustrated the adaptor mechanism by which these various systems may be interconnected with each other so as to permit a single central station to purvey music of any of the systems. One outlying subscribers station is indicated in Fig. 2 by the apparatus illustrated as enclosed within the dotted line box bearing the legend subscriber's station while an auxiliary or second subscriber's station adapted to receive the measured music is illustrated in another dotted line box bearing the legend auxiliary subscriber's station. The central station equipment is illustrated diagrammatically as being located within the area denoted by the dotted line outline bearing the legend central station.

In operating the system in accordance with the principles of my invention, I prefer to employ at least one telephone circuit made up either of one pair of metallic telephone wires or one metallic wire and ground interconnecting the subscriber's station and the central station and an additional signaling circuit which may be either a second metallic pair of telephone wires or a grounded circuit through the telephone isolating circuits on the first pair. For simplicity oi illustration herein, I have shown these telephone wire circuits as including one pair indicated by the reference characters A and B to be employed for the purpose of transmitting music and inter-talk communications between the subscriber's station and the central station and also to transmit thev sisnals to the wired music operator's switchboard coin counter ll,- transmission of the necessary signal impulses to select records on the phonograph 2 being made over an additional circuit shown as a second pair of telephone wires X and Y which are also employed for a special signal to be hereinafter described.

For simplicity of understanding the essential features of my invention, I have illustrated at the subscriber's station a combination of apparatus including a wired music reproduction unit 5 and a coin actuated phonograph selector mechanism indicated generally by the reference character I, while at the auxiliary subscribers station I have illustrated a set of measured music apparatus indicated by the reference character 9.

In the subscriber's station I have illustrated the wired music reproducer 5 interconnected to the telephone lines A-B through an amplifier and network system of the type illustrated and described in the Stark, et al, patent hereinbefore referred to, which amplifier and network is provided with the necessary amplifying equipment to insure sufficient volume of output at the speaker 2| thereof and the network is ar-. ranged to prevent interference with transmission of the music to the speaker 2| by the various signaling operations including the depositing and counting of the coins and the inter-talk between the subscriber at the reproducer 5 with the operator at the central station, all as is described and illustrated in said Stark, et al. patent.

At the subscribers station at which the "wired music reproducer 5.is employed, I have illustrated only one of the coin collecting and ecord selecting boxes I equipped with the dial l8 by which the depositor of a coin therein is permitted to select the particular record on the phonograph 2 which is desired to be played.

In the separate portion of the subscriber's station I have illustrated only one of the measured music coin collection boxes 9 equipped with the loud speaker 20.

At the central station, I have illustrated a central station amplifier and network 22 which will be connected to the central station switchboard 4 and to the wired music phonograph pick-up I! as well as to the pick-up I03 of the phonograph 2, the amplifier and network 22 being similar to that illustrated in the Stark, et al. pat-- cut topermit the inter-talk between the subscribers station and the central station and the registering of the number and value of coins deposited in the wired music reproducer 5 without interference with each other.

The operation of my system can best be understood by referring to a series of assumed conditions, it being understood that only a single subscriber's station and only a single measured music subscriber s station are illustrated and that for as many additional subscribers stations as may be desired to be operated upon the system four telephone conductors or two pairs of telephone conductors A and B and x and Y will be required to be extended between additional trical currents to operate the phonograph 2 in the central station. For simplicity of illustration, 1 have shown the selector box las being equipped with apparatu which will permit the selection of records by an impulse system such as that already well known and in usein remote-controlled phonograph operations, this mechanism including the dial selector i8 whichmay correspond in all respects to the ordinary dial selector used on telephones and, in addition, includes a stepping mechanism indicated generally by the reference character 23 by which a number of coins deposited in th box 1 may be used to select a number 01' records to be played by the phonograph 2 dependent upon the number of and value of the coins so deposited. The stepper mechanism 23 may be of any well known construction but is illustrated herein as a modified form of the stepping mechanism which is shown in Fig. 18 of the Wilcox Patent No. 2,002,236, such mechanism being modified only in the respect that it employs a series of contacts 24 to be engaged by a contact arm 25 in place of the single switch 3-444 shown in the Wilcox patent, and that the mechanism employed for stepping the stepper 23 back includes a magnetically operated mechanism 25 instead of the mechanically actuated step-back mechanism shown in the Wilcox patent. This and similar types of stepping mechanisms are well known in this art.

Assuming now that a single'coin was deposited and has closed the contacts of the switch 8-50, the stepper mechanism 23 will be actuated one step in the counter-clockwise direction by the energization of step-up magnets 21 which actuate the notched disk 28 to permit the spring 29 to move the notched disk one notch in a counter-clockwise direction. The deposit of the coin in the switch S-Sfl completes a circuit from a suitable source of local power at the local subscribers station indicated as a transformer Tl, the primary winding of which may be connected to the ordinary GO-cycle alternating current supply lines found at the local subscribers station, while the secondary of the transformer Tl provides a pair of line conductors, indicated by the reference characters Li audit-2, to supply the necessary current for operating the apparatus in phonograph selector box I. The circuit completed by the deposit of the coin extends from line conductor Li through conductor 30, the coils of the stepping magnet 27,

the switch contact S-50 to lin conductor L -2. Stepping of the notch disk 28 one notch in a counter-clockwise direction will move the contact arm 25 into contact with one of the contact terminals 24, all of which are illustrated as being connected together in such manner as to complete a circuit to the dial selector I 8 to permit operation of the dial selector to transmit the desired number of impulses over the telephone lines X and Y.

As is well known by those skilled in the telephone art, the dial selector I8 when moved in a clockwise direction will close a switch 32, which switch will remain closed until the dial has been assume returned to its normal position while at the same time the dial l8 closes and opens the contacts 01 a selector switch 33 a number of times "corresponding to the extent to-which the dial has been moved in a clockwlse'direc'tion by the finger of a person operating the dial.

The operation of the dial It will therefore transmit a series oi impulses to the telephone wires X and Y, the circuit actuated by the dial selector impulse switch 3i extending from line conductor L2 through the conductor 32, the contact point on the switch 23, which has been engaged by the contact arm 25 and thence by way of conductors 33 and '34, the contacts of switch II, and thence by way of conductors 35 and 36 to telephone wire X, the opposite telephone wire Y being connected to line conductor LI by means of conductor 31. Assuming that the number of impulses sent over the line by the switch 3| is for the purpose of selecting record No. 1 on the phonograph 2, the apparatus on the phonograph 2 will be operated to start the phonograph motor in the phonograph 2 into operation and to achieve the selection of and the play of record No. 1 thereon, the music so produced being transmitted back over the telephone lines A--B, through the amplifier network 22, through music conductors 38 and 39 to be reproduced on the loud speaker 2| of the reproducer unit 3.

Assuming that only a single coin was deposited in the record selection box I, the start of the dialing operation will close switch contacts 40 to operate the step-back mechanism 26, causing the disk 23 to be stepped back to its original or on position by the closing of a circuit which extends from line conductor Ll through conductor 4|, coil of the step-back mechanism 26, conductor switch contacts All and conductor 43 to line conductor L2, the operation of the coil of the step-back mechanism 26 being delayed by any suitable mechanism so that the completion of the stepping back operation will occur only after the dialing has been completed as, for example, by maintaining the coin in circuit closing relation in the switch 8-50 until the completion or the ,select the particular desired record.

The dialing op ration transmitting the'impulses over the telephone lines X and Y will pass these impulses to the central station to cause the operation of an accepting relay R-Il at the central station, which is preferably connected to wires X and Y in circuit with a suitable condensor 44 so that only alternating current impulses will be accepted by the relay R-l I.

The phonograph 2 which is employed at the central station, while illustrated and generally referred to as being 01 the type shown in the Wilcox patent above referred to, may be any of the well known types of phonographs now in use which are subject to the remote selection of the particular record to be played by the phonograph. For purposes of illustration and description herein, I have shown the phonograph 2 as being of the type described in the Wilcox patent above referred to, modified slightly as will be illustrated in the following description.

In the Wilcox patent the phonograph is described as including the buttons l9 by which the particular record may be selected and in Figs.

not close the contacts 59 until the switch arm 49 has come to rest for a predetermined length or time in excess or the time interval between .successive impulses sent over the lines X-Y.

21 through 24 is illustrated a magnetic mechanism for permitting the remote selection of the records by magnetically actuating the buttons from a, remote selection station.

I have illustrated the selection of the records at the phonograph 2 as being made through the selector magnets such as those illustrated at I in the above entitled Wilcox patent, such selector magnets being illustrated in Fig. 2 hereof as magnet but to facilitate the operation of the phonograph 2 and to permit this magnetic selection I have illustrated a stepping mechanism 46 which includes a notched disk 41, similar to that shown in Fig. 18 of the Wilcox patent, which disk when actuated will move a pair of contact arms 48 and 49 over a series of terminals to complete the necessary actuating circuits.

In Fig. 2 the notched disk 41 is adapted to be stepped in a clockwise direction by means of an energizing magnet 50 and is adapted to be held in whatever position to which it is rotated by means of a pawl 5i so that the stepping mechanism 46 may be released and restored to its normal or off position by the energizatlon of a release magnet 52.

The selecting impulses transmitted over the telephone lines X and Y and operating the accepting relay Rll will cause the relay R-ll to close its switch contacts 8-" a number of times corresponding to the number of impulses transmitted over the telephone lines as a result of the operation of the dial E8. The contacts of the switch S-ll are in circuit with the energizing magnet 50 so that uponeach closing of the switch S-il the disk 41 will be stepped one notch in a clockwise direction.

Assuming that the depositor has placed one coin in the coin box I and hasselected record No. l, the notching of the disk 41 one notch in the clockwise direction will cause the contact arm 48 to move to that one of the terminals 59 which is connected to the energizing magnet 45 for record No. 1, while at the same time the contact arm 49 will be moved to one of the contact terminals associated with it, indicated by the "reference character 54.

Current for operating the stepping mechanism 46 may be derived from a local current source located in the central station and indicated in Fig. 2 as comprising a transformer T-2, the primary winding of which may be connected to the GO-cycle house current found at the central station, while the secondary winding of the transformer is connected to a pair of line conductors which may be termed line conductors L9 and Thus the closing of switch S-Il will cause a circuit to be completed to the energizing magnet 50 from line conductor L4 through conductor 55, contacts Sl'l, conductor 56, the coil5il, and conductor 51 to line conductor L3. The movement of the contact arm 48 to one of the contacts 53 corresponding to the record selected will partially complete a circuit to the particular record selector coil 45, which circuit, however,

will not be completed until the end of the dialing peration by reason of the connection 0! the coils 45 in series relation with the contacts 59 of a relay 60 which is so constructed that it will Thus the contact arm 48 may pass over a series .of contacts on its way to a particular selected contact without operating the particular record selector magnets associated with the preceding contact terminals 53.

As soon as a selection has been made on the phonograph 2, the selecting mechanism 48 should be returned to its normal or ofi position which may be readily accomplished by connecting the release magnet 52 in series relation with the contact terminal 59 oi. the relay 60 which will permit the energization of the release magnet 52 immediately at the end of one dialing operation.

Also the phonograph 2 is preferably equippedwith a step switch 52 corresponding to the step switch illustrated in Fig. 18 of the Wilcox patent, the purpose of which is to register the number and value or. the coins deposited for the selection of more than one record on the phonograph 2, thestep switch 62 being moved in a clockwise direction by the energization of step-up magnets 93, each energization of which will cause the notch disk of the stepping mechanism 62 to move one notch in a counter-clockwise direction.

In our assumed operation, a single coin having been deposited at the box I, the stepping mechanism'82 will be moved only one notch, thereby moving a pin 84 a sumcient distance in a counterclockwise direction as to permit contact terminals 8-9 to close, which in turn place into operation the operating motor M--2 of the phonograph 2, while the completion of the playing of one record on the phonograph 2 will resultin the notching tive to a lever 68 carrying one of the contacts oi" the switch 8-9 as to move the switch contacts 8-9 to open position.

Thus it will be observed that the deposit of the coin in the box i and the operation of the dial selector will actuate the phonograph 2 to select the particular desired record and to close the motor switch S--9, completing the circuit to the phonograph operating motor and through the operation of the phonograph 2 cause the particular record selected to be placed in playing position and to be played. Upon the termination of theplay, the operation of the shaft 66 and the arm 55 will result in the de-energization of the phonograph motor M2 and the phonograph 2 will be out of operation until the deposit of another coin in the box I. 1

In order, however, to adapt the phonograph 2 to be used in combination with the wired music" system, I connect the contacts of the motor switch S--9 for the phonograph motor M-2 in series relation with a switch 8-25 and with contacts S-8 of a relay R-2, which relay will be energized whenever the "wired music system is in actual operation playing a record over the wired music system.

Assuming tor the purposes of illustration herein that the "wired music" phonograph turn-table is not in operation, the foregoing operations of the phonograph 2 will be accomplished. on the other hand, if the wired music phonograph turn-table is in operation at the time of the deposit of the coin in the box I, the selector mechanism for selecting the particular record desired to be played by the phonograph 2 will completely function, resulting in the selection of the record and the steppingoi the stepper mechanism 62 to such position that the phonograph 2 willimmediately be placed in operation when the "wired music phonograph has completed the playing of such selection as had already been placed upon such turntable and was then in operation at the time of the deposit of the coin.

It will also be apparent that the selector mechanism 48 may be actuated in response to the deposit of a second coin and-the dialing of a second selection without interfering with the operation of the phonograph motor M-2 or the wired music" reproduction since all of the circuits necessary to complete the phonograph selection and to step the stepper mechanism 62 to register a second, third or more records to be played are entirely independent of the fact that the phonograph motor M-2 is already in operation and entirely independent of whether gir not the wired music turn-table is in opera- If, however, the coin is deposited in the box I at a time when the wired music turn-table is in operation, the selection of the records to b played by the phonograph 2 is set up ready to go into operation at the end of the playing of the record on the wired music machine.

To illustrate this latter operation, it will be noted that the circuit for the phonograph motor M-2 extends from line conductor L-3 through the contacts 8-3 of the relay R-2, conductor 89, phonograph motor M--2, conductor Ill, normally closed switch S25, conductors H and 12, the contacts or the motor switch 3-9 to line conductor Ll. Thus if the relay R2 is energized, the circuit to the motor M-2 cannot be completed.

However, the circuit for the relay R--2 extends through the contacts S-4 of a wired music system relay 3-3 which is connected in parallel relation with the turntable motor M-l for the wired music" turn-table ill so that whenever the circuit for the wired music turntable motor M-l is completed, a parallel circuit is completed to the coil of the relay R-3 to close its contacts S4, energizing the coil of relay art, the completion of the playing of a record on a wired music. turn-table ill will cause the opening of the circuit to the "wired music" turntable motor M-i to stop this turn-table, the relay R-3, being connected in parallel relation with the wired music turn-table motor M i by means of conductor '18, will therefore be deenergized at the termination of the wired music phonograph play, permitting its contacts 8-4 to open and de-energizing relay R2, which up to this time has held its contacts S3 open, preventing the operation of the phonograph motor M-2.

In accordance with the previously described assumed operations, the motor M-I of the "wired music" phonograph was not in operation. Hence the deposit of the coin I resulted in the operation of the phonograph M-2 to play the selected record. To indicate to the operator at the central station that the phonograph is in operation, I provide a signal light indicated at G, the circuit for which is controlled by a relay R-l, the coil of which is in turn connected ,in parallel with the phonograph motor M-2 so that whenever the phonograph motor M-2 is in operation the contacts S l of relay RI will complete a circuit through the signal light G from line conductor L3, through conductor 19, switch contacts Si, conductor 80, signal light G, and

' conductor 8| to line conductor L-fl. The signal light G may be given any desired distinctive appearance such as a green light.

It will also be noted that relay RI when energized not only operates to close the circuit to the green light G but that this relay is also provided with a pair of normally closed contacts S2 which, when the relay R-i is energized, are held in open circuit position, opening the circuit to the "wired music turn-table motor Ml and preventing the playing of any wired music selection until the completion of that record on the phonograph 2 which was then playing.

Assuming that in the meantime someone has deposited a coin in the coin slot iii of the wired music" reproducer 5 at the local station, such operation, as is explained in the Stark, et al. patent hereinbefore referred to, will result in the signaling to the operator at the central station that the coin has been deposited and the operator will speak over microphone I3 requesting the depos- 85 itor to state what selection of record is desired 4 reproduced at the central station at speaker i2 and the operator at the central station will select the desired record from the record library at the central station and place the same upon the "wired music turn-table l0 ready to play this selection at the termination of the previously selected record then playing on the phonograph 2. If more than one coin is deposited at the wired music reproducer station 5, the number and value of such coins will be registered upon the coin registering mechanism H at the central station and the selections requested corresponding to the number and value of such deposited coins will be taken from the library by the operator at the central station and placed upon the record tray I8 associated with the particular "wired music turn-table I0 corresponding to the subscribers station, ready to be played in the sequence in which these records have been called for by the voice communication between the subscribers station and the central station. At the same time the operator, having selected and placed the records either upon the turn-table I0 or upon the shelf l8, will cancel back the coin counting mechanism H, indicating that all of the records selected for the value of the coins depositedhave been placed ready for reproduction at the subscriber's station.

In addition to the mechanism which is illustrated and described in the Stark, et al. patent, I prefer to provide the record tray 18 with a movable shelt upon which the records will be deposited, such sheli' being provided with suitable contact members or a switch indicated generally at 83 arranged to be closed by the insertion upon or the presence upon the shelf I8 of unplayed I mechanisms ill and I1, I

a record being reproduced "wired music" selected records. Also associated with the "wired music turn-table and pick-up provide a switch which is adapted to be normally closed whenever the pick-up I1 is not'in playing position upon the turn-table I!) butwhich will be momentarily opened during the time that the pick-up arm I1 is traversing a record on the turn-table i during the playing of a record. This switch I have designated by the reference character 8-6 which, as will be observed from an inspection of Fig. 2, is connected in a circuit which extends from line conductor L-3, through conductor-84, the con-' tacts 83 of the wired music record shelf switch, thence through the coil of a relay R-l, thence by way of conductor 85, through the normally closed contacts of the switch -8, to line conductor L-4.

Under the assumed conditions of a record being upon the turn-table l0 and other records being upon the shelf iii, the relay coil 75- will be energized to close its contacts 8-5 which, it will be noted, is arranged to complete a circuit through a red signal light R to warn the operator at the central station that there are records to be played on the "wired music turn-table as soon as the record then playing on the phonograph 2 has been completed. 1

Upon the termination of the play of the record then playing on the phonograph 2, if there has been a selection of a record for the wired music" turn-table l0 and the record is in place on the turn-table ill, the de-energization of relay R-I by the opening of the phonograph motor control switch 8-25 (which will be momentarily opened at the termination of the play) will permit the contacts 8-2 of relay R-l to close, starting the wired music turn-table motor M-i into operation. the circuit for the coil of relay R-l extending from line conductor L-l, through conductors 19 and 86, the coil of relay Rr-i, conductor 87, to conductor 10, whence the circuit extends to line conductor 1-4, through the contactsof switch 8-75, conductors 1i and 72, and the contacts of the switch 8-9. The circuit for the motor M-l will thus be completed, extending from line conductor L-i, through conductor 19, the contacts 8-? of relay R-I, conductor 88, normally closed motor switch S-8 (corresponding to the motor control switch I96 shown and described in the Stark, et al. patent), which will be normally closed but will open momentarily upon the comp etion of the play of a recordupon the turn-table in.

As pointed out before, the closing of the switch contacts 3-2 which starts the motor M-l also completes a paral el circuit to the relay R-3, which in turn closes its the circuit for the relay R-2 and the energization of relay R-2, it will be remembered. opens its switch contacts 8-3 to prevent the re-completion of the circuit to the phonograph motor M-2 even though the switch S-9 remains closed by reason of unconsumed record selections on the phonograph 2, and the contacts of switch 8-25 immediately re-close after having been momentarily opened at the end of a record play on the phonograph 2.

Thus the wired music turn-table will operate to play the record selected, the music of such at the subscribers station through the speaker 2| in the manner described in the Stark, et al. patent hereinabove referred to.

contacts 8-4 to complete -Durlng-the table It, the will open the illuminated, indicating to the operator that there are additional wired music records to be played.

However, as soon as the switch 8-8 is momentarily opened at the termination of the play of the record on the "wired music turn-table I 0. relay R-3 will be de-energized, allowing its switch contacts 8-4 to open, thus de-energizing relay R-2, permitting its contacts 8-3 to close, completing the circuit are unplayed but previously selected records selected for play on the phonograph 2. Thus the system will continue to operate, alternately playing a record on the phonograph 2 and a record on the "wired music" turn-table in as long as there remains selected but unplayed records on these devices.

However, if upon the termination of a play of a record on the wired music turn-table Hi there are no further selected but unplayed records on the phonograph 2, the stepping mechanism 62 will have been returned to its normal or 01? position, as shown in Fig. 2, opening the contacts 8-9 for the control of the motor M-Z. Hence upon the completion of the play on the wired music turn-table, the momentary opening of the switch S-8, de-energizing relay R-3 and resulting in the de-energization of relay R-: will not start the motor M-2 because switch 8-9 is open. Since switch 8-9 is open, relay R-I will be deenergized and a second selection may immediately be played on the wired music turn-table l0.

Likewise if upon the completion of the play of a record on the phonograph 2 there are no unplayed records to be played on the wired music turn-table i0 and there are further selected but unplayed records set up on the phonograph 2 by a stepping of the stepping mechanism 62 away from its normal position, the momentary opening of the switch contacts S-25 will have'no effect and the immediate re-closing of the contacts 5-25 will immediately re-start the motor M-Z to'play the next selected record and the phonograph 2 will remain in operation until all of the previously selected records have been played on the phonograph 2 unless in the meantime a selection of wired music pick-up arm IT has been placed in operating position upon the turn-table l0.

It frequently occurs that either upon the wired music turn-table ill or in the phonograph 2 a record may become stuck or for some reason fails to play and I provide a means for warning the central station operator of such stuck record condition by providing at the subscribers station a push button lflfladapted to be connected over the extra telephone wire system X-Y (which may be either a 2-conductor telephone wire system interconnecting the subscribers station with the central station or may be a single telephone wire and ground). The operation of the push button I00 may be termed a cancel operation and supplies current to the central stato the motor M-2 if there record is made and the will in turn complete a network at the subscriber's station. while I prefer to employ direct current for the cancel operations, it will also be understood that if desired the cancellation signals and operations hereinafter described may be employed with alternating current having a frequency which will not interfere with the various frequencies employed for the transmission of music from the central station to the subscriber's station or the intertalk and record selection currents required for the operation of the phonograph 2 and the wired music" system.

As illustrated in Fig. 2, the closing of the cancel push button I will supply direct currentthrough the telephone conductor X to the coil of a cancel relay R-I0, such circuit extending from the battery IOI, the push button I00, the conductor X, the coil of relay R-I0 to conductor Y back to the opposite terminal of the battery IN. The energization of the cancel relay R.--I0 will close its associated switch contacts S-IG, which circuit to a relay R-5. The relay R-S is provided with a pair of normally open contact switch members indicated as 3- and S-I2, respectively.

The energization of the relay R-S closing its contact switch members S-II will complete a circuit to a gong or other audible signal device I02 at the central station, audibly warning the operator at the central station that a record is to be canceled so that if at the time of the operation of the push button I00 there is a wired music record being played, attention will be immediately directed to the stuck record on the turn-table I0 and the operator will perform such operations as will be required to correct the improper play of that record.

0n the other hand, if at the time of the operation of the button I00 the phonograph 2 is in operation, the closing of switch contacts S-I2 upon the energization of relay R- will operate a magnet R,-0 associated with the phonograph pick-up arm I03 for the phonograph 2, such magnet R 0 being arranged in any manner conforming with the construction of the particular phonograph 2 to cause the stopping of the play of the stuck record on the phonograph. As indicated diagrammatically in Fig. 2, the energization of the magnet 3-0 will be employed to lift the phonograph pick-up arm record on the turn-table I04 of. the phonograph 2, thus stopping the play of that record, and the phonograph mechanism will automatically shut off the phonograph or start the play of another record if another had been previously selected.

It will also be observed from an inspection of Fig. 2 that the closing of the switch contacts S-I 6 by the energization of'cancel relay R-l0 also completed a circuit to a locking relay Rr-T which is illustrated as having a pair of contact terminals S--Il and with an arm I05 which is adapted to be caught and held in its uppermost position by means of a pawl I06 actuated by a release magnet 3-6, the arrangement being such that once the relay R-l has been energized the interlocking of the lever I05 with the pawl I08 will maintain the switch contacts S-Il closed until a subsequent operation is performed to energize the unlocking magnet Rr-i as will be hereinafter described.

The closing of the switch contacts 3- completes a circuit through a warning signal light A which may be of any color distinct from the green signal light G and the red signal light R, for example. an amber light, which light warns the operatorat the central station of the "stuck" record condition in addition to the warning given by the gong I02, the signal light I01 remaining in operation until a correction is made.

After the operator at the central station has noted the phonograph 2 or adjusted the "wired music" turn-table and pick-up I0-I'| to correct the improperplay condition, the operator will then operate a push button switch S-I0 which will complete a circuit to the unlockingmagnet R-B, releasing the pawl I00 from the lever I05 and permitting the re-opening of the switch contacts S--I4, extinguishing the signal light A.

As hereinbefore described, the "measured music system, such as illustrated and described in the above referred to Farrell patent, may be connected to the same central station equipment as is being employed for supplying music either by the phonograph 2 or the "wired music" system to a closely adjacent subscribers station, thus permitting a single phonograph 2 in the central station and a single turn-table for a "wired music system for a given subscriber to be employed to supply the necessary music for a measured music system in a scribers location which is sufllciently close to the first subscribers station as to be readily interconnected therewith. For example, the particular subscriber's location may be next door to a cafe or other place of business wherein measured music coin collection boxes 9 are located and which may be termed as an auxiliary subscribers station, thus permitting the interconnection of the subscriber's location and the auxiliary subscribers location merely by extending a few interconnecting wires between them.

By referring particularly to Fig. 2, it will be noted that the auxiliary subscriber's location is located within the-dotted line box bearing the legend auxiliary ubscribers station and is interconnectedwith, the subscriber's location containing the wiredmusic reproducer 5 by means of four conductors indicated by the reference characters I08, I09, H0 and III.

For the operation of the measured music system all that is necessary is that v.there be a record in play upon either-the phonograph 2 or upon the "wired music. system-and in the event there is no record in play-on either of these systems the measured music" system must operate so as to start the play of a record upon the phonograph 2.

The accomplishment ofthis is illustrated in Fig. 2 as by providing the measured music box 0 with coin actuated switches 3-23 and 5-10. which are adapted to be closed upon the deposit of a coin in the measured music" box 9. The closing of the switch contacts S-2l will connect the speaker 20 on the "measured music box 0 across the conductors I08I09 which are an extension of the music carrying conductors extending from the amplifier network in the main subscriber's station so that any record which is in play at the time of the deposit of the coin in the box 0 will be reproduced by the speaker 20. The "measured music system as illustrated and. described in the above noted-Farrell patent includes a timing mechanism which will maintain the switch 24 closed for a predetermined length of time subsequent to the deposit of a coin in the box I09. 7

Assuming that upon the deposit of a coin in the box 9 there was but apart of a record still playing on the wired music system or the phonograph 2 and that the length of such unfurther or auxiliary subplayed portion of the record is insuflicient to satisfy the time purchased by the deposit 01' the coin in the box 3, the switch contacts 8-23 being 8-23 will result in the operation of the phonograph 2 to ,play an additional record upon the phonograph 2 to supply the necessary music for the predetermined time period required at the box 9. This latter operation is accomplished by connecting the contacts of the switch 8-23 between the conductors H3 and III, the conductor III being in series circuit relation with a pair of switch contacts 8-26, which are in turn controlled by a relay coil R-I 4,

The relay coil R-I4 is connected in circuit with the stepper switch 23 in the record selection box I so that if this stepper switch'has its movable arm 25 on any 01' the contacts 24, representing the fact that box I is in operation, relay I4 will be energized to open its switch contacts 8-26. Thu upon the deposit of a coin in the box '9, the closing of the contacts 8-23 will have no effect. Immediately, however, upon the completion of dialing or selecting by the box I and the movementof the stepper switch brush arm 25 to the off position, the circuit to the coil R-M will be open and switch contacts 8-26 will reclose. If at that time-there is a coin deposited in the "measured music box 3, momentarily closing switch 23, this will supply a signal current to the central station from line conductor L-2 through the switch contacts 8-26, conductor III and conductor H over the conductors X and Y, causing the energization of accepting relay R-H. to operate the stepper mechanism 46 and record selecting mechanism 41 through a single step of its operation, putting the phonograph 2 into operation in the same manner as though a coin had been deposited in the box I and the dial I6 had been moved to select recordNo. 1 on the phonograph 2.

By referring particularly to the stepper mechanism 41 in Fig. 2, it will be noted that the first step'which is made by the movable arm 60 will cause this arm to engage a contact terminal H2 so that a circuit may be completed to a stepping mechanism H3, the stepping mech anism H3 being arranged so as to be movable only through two steps of operation, as is clearly indicated in Fig. 2. The stepper mechanism H3 is provided for the purpose of insuring the completion of the circuit to the phonograph motor M-2 and to maintain this circuit complete for only two advance" steps if two or more coins are depositeddn "measured music boxes 9 at the auxiliary subscriber's station. Thus if a record is already playing on the phonograph 2 at the time the coin is deposited in the measured music box 9, the stepping mechanism H3 will have stepped up one step and will be stepped up to a second step if additional coins are deposited in box 9 at the subscriber's station. The stepping mechanism I I 3 includes a notched disk I I4 having but two notches to be engaged by an operating or step-up pawl H5 actuated by a coil R-I2 and additional notches to be engaged and operated by a'step-back mechanism H6 which will be energized and actuated upon the completion of each record played by the phonograph 2. The notched disk H4 operates a movable contact arm H! to move it contact arm first into engagement with one contact terminal H8 and then upon a second operation into engagement with a contact terminal H3. Both of these contacts H8 and H3 are connected in parallel relation to the motor control switch 8-3.

Thus if the phonograph 2 is already in play at the time of the deposit of a coin in the box 9.

' the stepper mechanism H3 will have its contact its first position (engaging switch arm H1 and member on contact II 8 while if more than one record has beenselected ahead on the phonograph 2, the contact arm I I I will be upon its contact terminal H9. Thus with two records already selected on the phonograph 2, the deposit of the coin in the box 9 and the closing of switch 23 will be'inefl'ective to cause any operation and the depositor of the coin will be insured oi the play of the remaining part of that record now playing plus the second or next succeeding record which has been previously selected by the box I.

If, on the other hand. the last of the selected records selected by box I is playing on the phonograph, the deposit of the coin in the box 3 will momentarily close switch 23., sending an impulse through conductors HIl-I I I, over conductors X and Y, causing the energizatlon of accepting'relay R-H to impulse the stepper mechanism 41 again into contact with the terminal I ILand the phonograph will continue to play, as described in the Wilcox patent, the next record in rotation.

It will therefore be apparent that each time a record is selected by the'box I the, step-up mechanism H3 will be actuated by the completion of a circuit to the coil R-I2, the circuit ex tending from lineconductor L-4, through contact arm 49, contact terminal H2, conductor I26, the coil R-I2, and conductor I2I to line conductor L-3.

However, upon the completion of the play of any record on the phonograph 2, or during. the time of play of any one record on the phonograph v2, the pick-up arm I03 thereof will momentarily close a pair of switch contacts 8-2I to energize the step-back coil R-I3 operating the step-back Since, as will be remembered, the stepper mechanism H3 can only make two steps, it follows that irrespective of the number of records which may have been previously selected by operation of the selector box I, no more than two record plays may be spaced ahead onstepper mechanism I I3 and the depositor of'the coinin the measured music .box 9.-will always beassured of ,suflicient music reproduction to complete v the-timeperiod allowed by the measured music box 9.

If, as was assumed, only one record had been stepped up On the phonograph 2 by the record selector box 1 prior to the deposit of the coin in the measured music box 9, then upon the com pletion ofor during the play of that one record the stepper mechanism H3 will be stepped back to its oil position but will be stepped up again to terminal I I8) .upon the closing of the switch contacts 8-26 and the phonograph 2 will be maintained in operation for one more record play.

It now during the playing by the phonograph 2 of one record more than has been selected by selector box I (for the purpose of playing out the "measured music time), another coin is deposited in the "measured music box 9 or another tertainment at the measured music box in the same location, the result will be to step up the stepping mechanism H3 to its second position, that is, with the contact arm H1 in contact with terminal I I and the phonograph 2 will remain in play to play a third record providing music reproduction covering the second time interval called for by the deposit of the second coin in the box 9.

It will also be noted that the pick-up arm I! for the wired music turn-table 10, either at the end of the play oi the record which may be then playing on the "wired music" system or during the play of that record, will momentarily close a pair of contacts S-20 which are connected in parallel relation with the contacts S-2l actuated by the pick-up arm I03 of the phonograph 2. Thus if a wired music record is playing at the time of the deposit of a coin in the measured music box 9 and at a time when no record has been selected by the box I, the stepping mechanism 41 will be actuated to step up one step on the stepper mechanism I I3 and at the end of the playing oithe record then on the turn-table l0 the phonograph 2 will come into operation to play one recprd by the phonograph 2 to complete the time interval paid for by the deposit of a coin in the measured music box 9.

While as indicated above, the switch contacts 5-20 and 8-H may be closed at the end of the play of a record in the phonograph 2, or at the end of the play of the record on the wired music" turn-table I0, I prefer that the switch contacts 8-20 and 8-2! should be closed momentarily substantially at the start of such records so that the stepping back of the stepper mechanism H3 will occur at a time prior to the completion of the record then in Play, leaving a suflicient time interval to satisfy the demands of the measured music" box 9 while if the pickup arms I03 and I1 have moved inwardly upon their records so that an insufllcient time interval still remains on the record then playing to satisfy the demands of the box 9, the stepping mechanism I B will cause the phonograph 2 to go into operation to play another record providing record play for the complete full time interval demanded by the measured music box 9.

It will therefore be seen that I have provided a combination juke box" phonograph system with its associated remote control record selector devices with a wired music system having its vocal record selecting functions in such manner that either records played by the phonograph 2 or records played by the turn-table l0 may be reproduced at the subscriber's station. In addition, I have provided means by which the measured music system may be tied into the same combination system in such manner as to insure enmeasured music boxes for a time period purchased by the deposit of a coin in such boxes.

It will also be noted that each of these systems operates without interference with the other so that all of the record selecting and playing mechanisms may be contained in a single central ofice where an operator may respond to the voice selections made over the wired music system and may supervise the operation of the phonograph 2.

However, during off hours that is, such periods of the day at which wired music is not likely to be in demand, the "measured music" boxes 9 and the record selection boxes 1 will still be operative to actuate the phonograph 2 to provide entertainment purchased at either of these boxes.

Thus it will be seen that by the use of my systion connected to one of said 60 tion for collecting tern all of the phonograph equipment may be so located in a single central station from which wired music" may be purchased by some subscribers, "juke box" phonograph music may be purchased by other subscribers or as an additional service to a subscriber to the wired music" system. Also music may be purchased by an auxiliary subscribers station by way 0! a "measured music system with a minimum or equipment required to satisfy all of these demands, in addition to simplifying service problems by maintaining all of the phonograph equipmentin a single location where it may be readily observed, supervised, operated and correction of misplays, stuck records or other defects may be immediately made.

While I have shown and describedthe preferred embodiment of my invention l do not desire to be limited to any of thedetails of construction shown and described, except as defined in the appended claims.

I claim:

1. In a music reproduction system, a central station, a remotely located subscriber's station, a pair of telephone circuits connecting the subscribers station to the central station, a manually operated phonograph at the central statelephone circuits to supply to said circuit music produced by said manual phonograph. a speaker at the subscriber's station connected to said named telephone circuit to reproduce the music at the subscriber's station, a second phonograph at the central station of the type in which a number of records may be selected and automatically played in the order of their selection, means connecting said second phonograph to said named telephone circuit to reproduce the music at the speaker at the subscribers station, means at the subscriber's stacoins and for actuating the record selecting mechanism of said second phonograph, means connecting said coin collecting and record selecting means to the other of said telephone circuits, means at the central station connected to said other telephone circuit and operto electric current transmitted over said second circuit for registering the number of coins deposited in said record selecting means at the subscribers station and for operating said second phonograph to play the records in the order of their selection, and means at the central station interconnecting said manual phonograph and said second phonograph responsive to operation of said manual phonograph to prevent said second phonograph from playing a record until the termination of the play of a record then on the termination of play of said record for starting the play of a previously selected record on said second phonograph and preventing a subsequent play of a record on said manual phonograph and responsive to the termination of the play of a record on said second phonograph for starting the play of a previously selected record on the manual phonograph and preventing the play of a second previously selected record on the second record on the manual phonograph.

2. In a music reproduction system, a central station, a remotely located subscribers station, telephone circuits interconnecting said central station and said subscriber's station, a manual phonograph at said central station adapted to play records manually placed thereon, an automatic phonograph at said central station adapted to play a succession of records in response to an electrically operated record selecting mechanism and in the order or their selection by the selecting mechanism, means connecting both of said phonographs to said telephone circuits to place thereon the music reproduced by said phonograph, a speaker at the subscribers station connected to said telephone circuits to reproduce the music played by either of said centralstation phonographs, coin collecting and record selecting mechanism at the subscribers station and connected to said telephone circuits and having means for producing upon said telephone circuits electrical impulses denoting the number and value of coins deposited therein and for placing upon said telephone circuits a different number of electrical impulses for each ofv the records in said automatic phonograph to actuate the automatic phonograph selecting mechanism to play one or more of the records in said automatic phonograph in succession and in the order of their selection, and means at said central station actuatable in response to the termination of the play of any record on either of said phonographs for alternately disabling the phonograph .upon which the record has just completed play from playing a second record if selected unplayed records are ready to be,

played upon the other of said phonographs.

3. In a music reproduction system, a central station, a remotelylocated subscribers station, telephone circuits'interconnecting said central station and said subscribers station,,a manual phonograph at said central station adapted to play records manually placed thereon, an automatic phonograph at said central station adapted to play a succession of records in response to an electrically operated record selecting mechanism and in the order of their selection by the selecting mechanism, .means connecting both of said phonographs to said telephone circuits to place thereon the music reproduced by said phonograph, a speaker at the subscribers station connected to said telephone circuits to reproduce the music-played by either of said central station phonographs, coin collecting and record selecting mechanism at the subscriber's station and connected to said telephone circuits and having means for producing upon said telephone circuits electrical impulses difiering in character from the sound currents on said telephone circuits denoting the number and value of coins deposited therein and for placing upon said telephone circuits a different number of electrical impulses for each of the records in said automatic phonograph to actuate the automatic phonograph selecting mechanism to play one 'or'more of the records in said automatic phonograph in succession and in the order of their selection, means at said central station operable only by said impulses for actuating the automatic phonograph mechanism to cause said phonograph to pla theselected records in sequence and in the order of their selection, and means at said central station actuatable. in response to the termination of the play of any record on either of said phonographs for alternately disabling the phonograph upon which the record has just completed play from telephone circuits interconnecting said 'central' playing a second record if selected unplayed 1 records are ready to be played upon the other of said phonographs.

4. In a music reproduction system, a central station, a remotely located subscribers station, telephone circuits interconnecting said central station and said subscribers station, a manual phonograph at said central station adapted to play records manually placed thereon, an automeans for producing upon said telephone circuits electrical impulses diilering in character from the sound currents on said telephone circuits denoting the number and value of coins deposited therein and for placing upon said telephone circuits a difierent number of electrical impulses for each or the records in said automaticphonograph to actuate the automatic phonograph selectlng mechanism to play one or more of the recordsin said automatic phonograph in succes-- sion and in the order of their selection, means at said central station operable only by said impulses for actuating the automatic phonograph mechanism to cause said phonograph to play the selected records in sequence and in the order of their selection, means at said central station actuatable in response to the termination of the play of any record on either of said phonographs for alternately disabling the phonograph upon which the record has just completed play fromplaying a second record if selected unplayed records are ready to be played upon the other of said phonographs, signaling means at the subscribers station for placing on said telephone circuits an electric current differing in character from the music currents and said impulse cur-' rents, a signal at said central station, and means at said central station connected to said telephone circuits and responsive only to currents of said last named character for actuating said signal at said central station. 5. In a music reproduction system, a central station, a remotely located subscribers station,

station and said subscribers station, a manual phonograph at said central station adapted to play records manually placed thereon, an automatic honograph at said central station adapted to play a succession of records in response to an electrically operated record selecting mechanisin and in the order of their selection by the selecting mechanism, means connecting both of said phonographs to said telephone circuits to place thereon the music reproduced by said phonograph, a speaker at the subscribers station connected to said telephone circuits to reproduce the music played by either of said central station phonographs, coin collecting and record selecting mechanism at the subscribers station and connected to said telephone circuits and having means for producing upon said telephone circuits electrical impulses differing in character from the sound currents on said telephone circuits denoting the number and value of coins deposited therein and for placing upon said telephone .circuits a different number of electrical impulses for each of the records in said automatic phonograph to actuate the automatic phonograph selecting mechanism to play one or more of the records in said automatic phonograph in successlon--and inthe order of their selection, means at said central station operable only by said impulses for actuating the automatic phonograph mechanism to cause said phonograph to play the selected records in sequence and in the order of their selection, means at said central station actuatable in response to the termination'of the play of any record on either of said phonographs for alternately disabling the phonograph upon which the record has just completed play from playing a second record if selected unplayed records are ready to be played upon the other of said phonographs, signaling means at the subscribers station for placing on said telephone circuits an electric current differing in character from the music currents and said impulse currents, a signal at said central station, a circuit for said signal including a switch, means at said central station responsive only to currents of said last named character for closing said switch to actuate said signal holding means for holding said switch in closed position, and manually actuated means at said central station for releasing said holding means.

6. In a music reproduction system, a central station, a remotely located subscribers station, telephone circuits interconnecting said central station and said subscribers station, a manual phonograph at said central station adapted to play records manually placed thereon, an automatic phonograph at said central station adapted to play a succession of records in response to an electrically operated record selecting mechanism and in the order of their selection by the selecting mechanism, means connecting both of said phonographs to said telephone circuits to place thereon the music reproduced by said phonograph, a speaker at the subscribers station connected to said telephone circuits to reproduce the music played by either of said central station phonographs, coin collecting and record selecting mechanism at\the subscribers station and connected to said telephone circuits and having means for producing upon said telephone circuits electrical impulses differing in character from the sound currents on said telephone circuits denoting the number and value of coins deposited therein and for placing upon said telephone circuits a different number of electrical impulses for each of the records in said automatic phonograph to actuate the automatic phonograph selecting mechanism to play one or more of the records in said automatic phonograph in succession and in the order of their selection, means at said central station operable only by said impulses for actuating the automatic phonograph mechanism to cause said phonograph to play the selected records in sequence and in the order of their selection, means at said central station actuatable in response to the termination of the play of any record on either of said phonographs for alternately disabling the phonograph upon which the record has just completed play from playing a second record if selected unplayed records are ready to be played upon the other of said phonographs, an auxiliary subscribers station, means at said auxiliary subscribers station for reproducing at said auxiliary subscribers station music of records played by either of the phonographs at the central station, said means including a speaker and coin collecting means for producing electrical impulses denoting the numher and value of coins deposited therein, and means connecting the auxiliary subscribers station to said telephone circuits extending to the subscribers station.

'1. In a music reproduction system, a central station, a remotely located subscribers station, telephone circuits interconnecting said central station and said subscribers station, a manual phonograph at said central station adapted to play records manually placed thereon, an automatic phonograph at said central station adapted to play a succession of records in response to an electrically operated record selecting mechanism and in the order of their selection by the selecting mechanism, means connecting both of said phonographs to said telephone circuits to place thereon the music reproduced by said phonograph, a speaker at the subscribers station connected to said telephone circuits to reproduce the music played by either of said central station phonographs, coin collecting and record selecting mechanism at the subscribers station and connected to said telephone circuits and having means for producing upon said telephone circuits electrical impulses diifering in character from the sound currents on said telephone circuits denoting the number and value of coins deposited therein and for placing upon said telephone circuits a different number 0! electrical impulses for each of the records in said automatic phonograph to actuate the automatic phonograph selecting mechanism to play one or more of the records in said automatic phonograph in succession and in the order of their selection, means at said central station operable onl by said impulses for actuating the automatic phonograph mechanism to cause said phonograph to play the selected records in sequence and in the order of their selection, means at said central station actuatable in response to the termination of the play of any record on either of said phonographs for alternately disabling the phonograph upon which the record has just completed play from playing a second record if selected unplayed records are ready to be played upon the other of said phonographs, an auxiliary subscribers station, means at said auxiliary subscribers station for reproducing at said auxiliary subscribers station music of records played by either of the phonographs at the central station, said means including a speaker and coin collecting means for producing electrical impulses denoting the numher and value of coins deposited therein, means connecting the auxiliary subscribers station to said telephone circuits extending to the sub-,

scribers station, and means interposed in the circuits between said subscribers station and said auxiliary subscribers station to prevent the transmission of impulses from said auxiliary subscribers station during the time period when any unplayed but previously selected records remain to be played in response to the record selecting mechanism at the subscribers station.

8. In a music reproduction system, a central station, a. remotely located subscribers station, telephone circuits interconnecting said central station and said subscribers station, a manual phonograph at said central station adapted to play records manually placed thereon, an automatic phonograph at said central station adapted to play a succession of records in response to an electrically operated record selecting mechanism and in the order of their selection by the selecting mechanism, means connecting both of said phonographs to said telephone circuits to place thereon the music reproduced by said phonograph, a speaker at the subscribers station connected to said telephone circuits to reproduce the music played by either of said central station phonographs, coin collecting and asoepsc record selecting mechanism at the subscribers station and connected to said telephone circuits and 'having means for producing upon said telephone circuits electrical impulses difiering in character from the sound currents on said telephone circuits denoting the number and value of coins deposited therein and for placing upon said telephone circuits a difierent number of electrical impulses for each of the records in said automatic phonograph to actuate the automatic phonograph selecting mechanism to play one or more of the records in said automatic phonograph in succession and in the order of their selection, means at said central station operable only by said impulses for actuating the automatic phonograph mechanism to cause said phonograph to play the selected records in sequence and in the order of their selection, means at said central station actuatable in response to the termination of the play of any record on either of said phonographs for alternately disabling the phonograph upon which the record has just completed play from playing a second record if selected unplayed records are ready to be played upon the other of said phonographs, an auxiliary subscribers station, means at said auxiliary subscribers station for reproducing at said auxiliary subscribers station music of records played by either of the phonographs at the central station, said means including a speaker and coin collect ing means for producing electrical impulses denoting the number and value of coins deposited therein, means connecting the auxiliary subscribers station to said telephone circuits extending to the subscribers station, means interposed in the circuits between said subscriber's station and said auxiliary subscribers station to prevent the transmission of impulses from said auxiliary subscribers station during the time period when any unplayed but, previously selected records re main to be played in response to the record selecte ing mechanism at the subscribers station, means responsive to the transmlssionof impulses by the coin collecting mechanism in said auxiliary subscribers station for permitting the efiective registration of only two impulses, and means actuated by the termination of play of each record on either of the phonographs at said central station for enabling said last named means to thereafter register a coin deposited at said auxiliary subscribers station between said termination and the termination of the next record played-on either of said phonographs.

9. In a music reproducing system, a central station, a remotely located subscribers station,

telephone circuits interconnecting said two stations, a manually actuated phonograph at the central station for transmitting over said telephone circuits music of records played thereon, a speaker at said central station for reproducing said music, inter-talk mechanism at said central station and said subscribers station for permitting the vocal selection of records to be played; on said phonograph, record holding means upon which records selected to be played subsequent to a record then playing on said phonograph may be placed, and means responsive to the location of any record on said record holding means for actuating a signal denoting selected but unplayed records to be played on said phonograph.

10. In a music reproduction system, a central station, a remotely located subscribers station, telephone circuits interconnecting said central station and said subscribers station, a manual phonograph at said central station adapted to play records manually placed thereon, an automatic phonograph at said central station adapted to play a succession of records in response to an electrically operated record selecting .mechanism and in the order of their selection by the selecting mechanism, means connecting both of said phonographs to said telephone circuits to place thereon the music reproduced by said phonograph, a speaker at the subscriber's station connected to said telephone circuits to reproduce the music played by either of said central station phonographs, coin collecting and record selecting mechanism at the subscribers station and connected to said telephone circuits and having ing the number and value of coins deposited therein and for placing upon said telephone circuits a diiferent number of electrical impulses for each of the records in said automatic phonograph to actuate the automatic phonograph selecting mechanism to play one or more of the records in said automatic phonograph in succession and in the order of their selection, means at said central station operable only by said impulses for actuating the automatic phonograph mechanism to cause said phonograph to play the selected records in sequence and in the order of their selection, means at said central station actuatable in response to the termination of the play of any record on either of said phonographs for alternately disabling the phonograph upon which the record has just completed play from playing 'a second record if selected unplayed records are ready to be played upon the other of said phonographs, record holding means upon which records selected to be played subsequent to a record then playing on said phonograph may be placed, means responsive to the location of any record on said record holding means for actuating a signal denoting selected but unplayed records to be played on said phonograph, and signaling means responsive to the record selecting mechanism of said automatic phonograph when se lected records remain unplayed on said phonograph for actuating a signal denoting selected but unplayed records on said automatic phonograph.

JAMES HARRY SNODGRASS. 

